Unity绘制参考网格

1.仿制Maya参考网格 

using UnityEngine;

public class ReferenceGridRenderer : MonoBehaviour
{
    //[SerializeField] Color color = new Color(1, 1, 1, 0.5f);
    [SerializeField] [Range(1, 1000)] float range = 20;
    [SerializeField] [Range(0.1f, 100)] float interval = 1;
    [SerializeField] float centerLineWidth = 0.05f;
    [SerializeField] float outerLineWidth = 0.01f;
    [SerializeField] Color centerLineColor = Color.white;
    [SerializeField] Color outerLineColor = new Color(1, 1, 1, 0.5f);

    void Start()
    {
        CreateReferenceGrid();
    }

    void CreateReferenceGrid()
    {
        GameObject referenceGrid = new GameObject("Reference Grid");

        for (float i = -range; i <= range; i += interval)
        {
            GameObject lineObjectX = new GameObject("Line X");
            lineObjectX.transform.SetParent(referenceGrid.transform);
            LineRenderer lineRendererX = lineObjectX.AddComponent<LineRenderer>();
            lineRendererX.material = new Material(Shader.Find("Sprites/Default"));
            lineRendererX.startColor = (i == 0) ? centerLineColor : outerLineColor;
            lineRendererX.endColor = (i == 0) ? centerLineColor : outerLineColor;
            lineRendererX.startWidth = (i == 0) ? centerLineWidth : outerLineWidth;
            lineRendererX.endWidth = (i == 0) ? centerLineWidth : outerLineWidth;

            GameObject lineObjectZ = new GameObject("Line Z");
            lineObjectZ.transform.SetParent(referenceGrid.transform);
            LineRenderer lineRendererZ = lineObjectZ.AddComponent<LineRenderer>();
            lineRendererZ.material = new Material(Shader.Find("Sprites/Default"));
            lineRendererZ.startColor = (i == 0) ? centerLineColor : outerLineColor;
            lineRendererZ.endColor = (i == 0) ? centerLineColor : outerLineColor;
            lineRendererZ.startWidth = (i == 0) ? centerLineWidth : outerLineWidth;
            lineRendererZ.endWidth = (i == 0) ? centerLineWidth : outerLineWidth;

            lineRendererX.SetPositions(new Vector3[] { new Vector3(-range, 0, i), new Vector3(range, 0, i) });
            lineRendererZ.SetPositions(new Vector3[] { new Vector3(i, 0, -range), new Vector3(i, 0, range) });
        }
    }
}

2.仿制 ThreeEditor 参考网格

using UnityEngine;

public class ReferenceGridRenderer : MonoBehaviour
{
    [SerializeField] [Range(1, 1000)] float range = 20;
    [SerializeField] [Range(0.1f, 100)] float interval = 1;
    [SerializeField] float centerLineWidth = 0.05f;
    [SerializeField] float outerLineWidth = 0.01f;
    [SerializeField] Color centerLineColor = Color.white;
    [SerializeField] Color outerLineColor = new Color(1, 1, 1, 0.5f);
    [SerializeField] float fifthLineWidth = 0.02f;
    [SerializeField] Color fifthLineColor = new Color(1, 0, 0, 0.5f);

    void Start()
    {
        CreateReferenceGrid();
    }

    void CreateReferenceGrid()
    {
        GameObject referenceGrid = new GameObject("Reference Grid");

        int count = 0;
        for (float i = -range; i <= range; i += interval)
        {
            GameObject lineObjectX = new GameObject("Line X");
            lineObjectX.transform.SetParent(referenceGrid.transform);
            LineRenderer lineRendererX = lineObjectX.AddComponent<LineRenderer>();
            lineRendererX.material = new Material(Shader.Find("Sprites/Default"));
            if (i == 0)
            {
                lineRendererX.startColor = centerLineColor;
                lineRendererX.endColor = centerLineColor;
                lineRendererX.startWidth = centerLineWidth;
                lineRendererX.endWidth = centerLineWidth;
            }
            else if (count % 5 == 0)
            {
                lineRendererX.startColor = fifthLineColor;
                lineRendererX.endColor = fifthLineColor;
                lineRendererX.startWidth = fifthLineWidth;
                lineRendererX.endWidth = fifthLineWidth;
            }
            else
            {
                lineRendererX.startColor = outerLineColor;
                lineRendererX.endColor = outerLineColor;
                lineRendererX.startWidth = outerLineWidth;
                lineRendererX.endWidth = outerLineWidth;
            }

            GameObject lineObjectZ = new GameObject("Line Z");
            lineObjectZ.transform.SetParent(referenceGrid.transform);
            LineRenderer lineRendererZ = lineObjectZ.AddComponent<LineRenderer>();
            lineRendererZ.material = new Material(Shader.Find("Sprites/Default"));
            if (i == 0)
            {
                lineRendererZ.startColor = centerLineColor;
                lineRendererZ.endColor = centerLineColor;
                lineRendererZ.startWidth = centerLineWidth;
                lineRendererZ.endWidth = centerLineWidth;
            }
            else if (count % 5 == 0)
            {
                lineRendererZ.startColor = fifthLineColor;
                lineRendererZ.endColor = fifthLineColor;
                lineRendererZ.startWidth = fifthLineWidth;
                lineRendererZ.endWidth = fifthLineWidth;
            }
            else
            {
                lineRendererZ.startColor = outerLineColor;
                lineRendererZ.endColor = outerLineColor;
                lineRendererZ.startWidth = outerLineWidth;
                lineRendererZ.endWidth = outerLineWidth;
            }

            lineRendererX.SetPositions(new Vector3[] { new Vector3(-range, 0, i), new Vector3(range, 0, i) });
            lineRendererZ.SetPositions(new Vector3[] { new Vector3(i, 0, -range), new Vector3(i, 0, range) });

            count++;
        }
    }
}